公开(公告)号：US06232775B1

公开(公告)日：2001-05-15

申请号：US09211126

申请日：1998-12-14

申请人： Yutaka Naitoh ,  Teruo Bitoh ,  Takashi Hatanai ,  Akihiro Makino ,  Junichi Ouchi ,  Shinichi Sasaqawa ,  Akihisa Inoue ,  Tsuyoshi Masumoto

发明人： Yutaka Naitoh ,  Teruo Bitoh ,  Takashi Hatanai ,  Akihiro Makino ,  Junichi Ouchi ,  Shinichi Sasaqawa ,  Akihisa Inoue ,  Tsuyoshi Masumoto

IPC分类号： G01R3302

CPC分类号： C22C38/14 ,  C22C38/10 ,  C22C38/12 ,  C22C38/16 ,  C22C45/02 ,  G01R33/02 ,  G11B5/127 ,  G11B5/33 ,  H01F1/15308

摘要： A magneto-impedance element comprises an alloy composed of at least one of Fe, Co and Ni. The alloy has a mixed texture of an amorphous phase and a fine crystalline phase having an average crystal grain size of 50 nm or less. The magneto-impedance element shows a change in impedance in response to an external magnetic field by applying an alternating current. The magneto-impedance element is applied to an azimuth sensor, an autocanceler, or a magnetic head.

摘要翻译： 磁阻元件包括由Fe，Co和Ni中的至少一种构成的合金。 该合金具有非晶相和平均晶粒尺寸为50nm以下的细晶相的混合组织。 磁阻抗元件通过施加交流电来显示响应于外部磁场的阻抗变化。 磁阻元件被施加到方位传感器，自动扫描器或磁头。

公开(公告)号：US6083325A

公开(公告)日：2000-07-04

申请号：US893768

申请日：1997-07-11

申请人： Teruo Bitoh ,  Yasuo Hayakawa ,  Takashi Hatanai ,  Akihiro Makino ,  Akihisa Inoue ,  Tsuyoshi Masumoto

发明人： Teruo Bitoh ,  Yasuo Hayakawa ,  Takashi Hatanai ,  Akihiro Makino ,  Akihisa Inoue ,  Tsuyoshi Masumoto

IPC分类号： H01F1/153 ,  H01F1/147

CPC分类号： H01F1/15308 ,  H01F1/15341

摘要： A method for making a Fe-based soft magnetic alloy where an alloy melt is injected onto a moving cooling unit to form an amorphous alloy ribbon. The alloy melt contains Fe as a main component, B and at least one metallic element M selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Mo and W, the composition of the alloy melt being selected such that the resulting amorphous alloy ribbon is characterized by a first crystallization temperature at which fine grain bcc Fe crystallites precipitate, and a second crystallization temperature at which a compound phase containing Fe--B and/or Fe--M precipitates. The amorphous alloy ribbon is then annealed at a temperature which is higher that the first crystallization temperature and less than the second crystallization temperature for an annealing time in the range of 0 minutes to 20 minutes.

摘要翻译： 一种制造Fe基软磁合金的方法，其中将合金熔体注入到移动的冷却单元上以形成非晶合金带。 合金熔体含有Fe作为主要成分，B和选自Ti，Zr，Hf，V，Nb，Ta，Mo和W中的至少一种金属元素M，选择合金熔体的组成使得 所得到的非晶合金带的特征在于细晶粒bcc Fe微晶析出的第一结晶温度和含有Fe-B和/或Fe-M的化合物相析出的第二结晶温度。 然后在0分钟至20分钟的范围内，在比第一结晶温度高且低于第二结晶温度的退火时间的温度下退火非晶态合金带。